Related Experiment Videos
[Surgical indication to deep-seated arteriovenous malformation]
K Akachi1, N Nakamura, T Kikuchi
1Department of Neurosurgery, Tokyo Jikei University School of Medicine, Japan.
No to Shinkei = Brain and Nerve
|July 1, 1989
Summary
Surgical removal of deep arteriovenous malformations (AVMs) can improve outcomes, but careful risk assessment is crucial. Surgery for deep AVMs is associated with improved survival and neurological status compared to non-operative management.
Area of Science:
- Neurosurgery
- Neurology
- Radiology
Background:
- Cerebral arteriovenous malformations (AVMs) pose significant risks, especially when deep-seated.
- Ruptures of deep AVMs can lead to severe disability or death.
- The optimal treatment strategy for deep AVMs remains debated.
Purpose of the Study:
- To evaluate the outcomes of surgical extirpation for deep-seated AVMs.
- To identify risk factors influencing surgical decision-making and outcomes.
- To compare surgical management with non-operative approaches for deep AVMs.
Main Methods:
- Retrospective analysis of 47 deep AVM cases at Tokyo Jikei University Hospital.
- Surgical extirpation of the nidus was performed in 32 cases.
- Risk factors assessed included nidus size, position, and CT-defined demarcation patterns.
Main Results:
- Total nidus extirpation was successful in 32 patients.
- Of 15 non-surgically treated patients, four died from rebleeding.
- Among 32 surgically treated patients, two died post-operatively, while 23 showed improvement or no neurological deficit aggravation.
Conclusions:
- Surgical intervention for deep AVMs, guided by risk stratification, can lead to favorable outcomes.
- Non-operative management of deep AVMs carries a significant risk of fatal rebleeding.
- Careful consideration of nidus characteristics is essential for surgical indication in deep AVMs.